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  1. Jun 13, 2024 · Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface.

    • One Year on Earth

      If a planet is close to the Sun, the distance it orbits...

    • A Day on Earth

      Another way to measure a day is to count the amount of time...

    • Leap Year

      Leap years are important so that our calendar year matches...

  2. 6 days ago · Of the eight major planets, Venus and Neptune have the most circular orbits around the Sun, with eccentricities of 0.007 and 0.009, respectively. Mercury, the closest planet, has the highest eccentricity, with 0.21; the dwarf planet Pluto, with 0.25, is even more eccentric.

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  3. Jun 13, 2024 · Since we live here, you might think we know all there is to know about Earth. Not at all, actually! We have a lot we can learn about our home planet. Learn more about Earth and all the planets in our solar system.

  4. Jun 13, 2024 · Solar System | NASA Space Place – NASA Science for Kids. Hello, Pluto! In July of 2015, a spacecraft named New Horizons arrived at Pluto after a long journey. It took amazing pictures of this dwarf planet and will continue to study other objects in the Kuiper Belt from 2018 to 2022. Find out more about Pluto. Make a comet on a stick!

  5. Jun 27, 2024 · Planet, broadly, any relatively large natural body that revolves in an orbit around the Sun or around some other star and that is not radiating energy from internal nuclear fusion reactions. There are eight planets orbiting the Sun in the solar system.

  6. Jun 24, 2024 · About ten years ago, science writer Ferris Jabr started contemplating Earth as a living planet rather than a planet with life on it. It began when he learned that the Amazon rainforest doesn't...